In the video, you can see Miranda loved Harry singing. He stomped his foot repeatedly and had the biggest smile on his face. Miranda also tweeted, "King George III’s great-great-great-great-great-great grandson The Duke Of Sussex sang a few bars tonight."

According to People, Miranda spoke with reporters before the show and said it would be "fun and surreal" to watch his creation with Markle and Harry. He also said,

"You don’t get that every day. You get heads of state, we’ve had some popular folks come see our show, but you don’t often get a direct descendant of one of your main characters."

For those unaware, one of the characters in Hamilton is King George III, who, like Miranda explained on Twitter, was Harry's great-great-great--great-great-great grandfather.

"It's funny, I was on my honeymoon when I thought, 'You know, it would be funny if I had King George in the show.' You know, British invasion, uh, 'British invasion music,' and I wrote the song on my honeymoon. Smash cut to 2018 and I'm sitting next to his sixth great grandson. Ladies and gentleman, the Duke of Sussex."

Yes, the conversation took place in front of Harry, who laughed right along with Miranda and everyone else.

The entire evening was a huge success and one Miranda was proud to be part of. He tweeted, "This company continues to knock me out and make me proud with every performance."

"You have together raised a huge amount of money to change the lives of thousands of children in Botswana ... and through that work, we will be able to stop the generational handover and stigma around HIV," Harry told those in attendance during his speech. "Thank you so much for being here this evening."

It's probably safe to say Harry, Markle, and Miranda will never forget the time they all saw Hamilton together.